In an automated analyzing apparatus, problems arise when a reagent container is carried in during analysis, since it is necessary to stop all accesses of mechanisms etc. to a location of the apparatus where the reagent container is placed and, in a situation in which measurements have been already started, it is impossible to carry the reagent container after waiting about several minutes. To address the problems, when a remaining amount of a reagent corresponding to a predetermined item becomes equal to or less than a first threshold value, a pause cycle of reagent suction is generated in which the reagent dispensing mechanism does not suction the reagent from inside of a reagent container of a reagent disc at regular intervals, and a reagent container containing the same kind of reagent in the reagent disc by the reagent container carrying mechanism is automatically carried in the pause cycle.